Excavation of rock for construction and mining requires blast hole drilling and shooting. The modern blast hole drill uses pneumatic, and mechanical systems to maximize the capabilities of the modern rotary rock bit. Each drill, regardless of its individual size or configuration, uses these systems to provide the proper amount of down force, rotation, and air to the bit.
Mobile Blast Hole Drilling Equipment
Sae Technical Papers
1977 SAE International Off-Highway and Powerplant Congress and Exposition ; 1977
1977-02-01
Aufsatz (Konferenz)
Englisch
Blasting drilling hole-forming hole depth detection equipment
Europäisches Patentamt | 2022
|Emerald Group Publishing | 2005
Deep offshore slim hole drilling
Tema Archiv | 1997
|